Outstanding. Looking forward to having a play with this.
Could be used to buy/sell crypto currencies by storing the address and private key and releasing them to a buyer? Or do I misunderstand?
I think so, yes. There is a danger that the seller would spend the coins at the same time as he sells them. But I think I read on the other thread that somebody is working for atomic cross-chain transactions, which would solve this issue, but I don't know a lot about that.